# T vs RestOrTrain

The clearest difference is review sentiment: T at 100% against RestOrTrain's 64%. T also leads on in-app purchases (none vs 4) and rating (5.0 vs 4.8). RestOrTrain's advantage is ratings volume (606 vs 2) and update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. RestOrTrain sells 4 in-app purchases, starting at $14.99 per month. T asks for nothing beyond the download.

T holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: RestOrTrain has 606 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of T's written reviews are positive against 64% of RestOrTrain's.

T ships an update every 3 weeks, RestOrTrain every 4 days. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | T | RestOrTrain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/t-zero/id6746770165/reviews)** | [4.8 (606 ratings)](https://appshunter.io/ios/app/restortrain/id6752621455/reviews) |
| Number of ratings | 2 | **606** |
| Positive reviews | **100.0% of reviews** | 63.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 14 MB | 33 MB |
| Requires iOS | **17.2** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 12+ |
| Developer | [Jatuzzi LLC](https://appshunter.io/developer/1766809777) | [RESTORTRAIN SP Z O O](https://appshunter.io/developer/1840211761) |

## What reviewers say

### T

[App page](https://appshunter.io/ios/app/t-zero/id6746770165)

This app helps triathletes organize race day logistics, track results, plan nutrition, and manage gear. It also connects athletes with a community for sharing advice and finding training partners.

**Highlights:** Race day checklists, Nutrition planning, Gear tracking and wishlist, Course map access, Race results tracking, Community forums and messaging, PacePal partner matching

**Features:** macOS Compatibility

**In-app purchases:** none


### RestOrTrain

[App page](https://appshunter.io/ios/app/restortrain/id6752621455)

This app uses AI to analyze your training data, from individual workouts to your complete fitness history. It provides insights into your endurance performance and training patterns. Access detailed information about your fitness journey.

**Highlights:** AI-driven training analysis, Comprehensive fitness history tracking, Individual activity insights, Endurance athlete focus, Performance pattern identification

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Monthly | $14.99 | per month |
| PRO Monthly | $14.99 | per month |
| PRO Annual | $134.99 | per year |
| PRO Annual | $134.99 | per year |


## Frequently asked questions

### Is T free?

T is free to download, with no in-app purchases.

### Is RestOrTrain free?

RestOrTrain is free to download, with in-app purchases available.

### Which has better reviews, T or RestOrTrain?

T is rated higher. T averages 5.0 out of 5 from 2 ratings, while RestOrTrain averages 4.8 from 606 ratings.

### Do T or RestOrTrain have ads?

Both T and RestOrTrain show ads.

### Which is updated more often, T or RestOrTrain?

T ships an update every 3 weeks, and RestOrTrain every 4 days. Most recently, T was updated on October 2, 2026 and RestOrTrain on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*